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  • Given below are two statements : One is labelled as Assertion A and other is labelled as Reason R. Assertion A : The dihedral angles in <img alt="\text{H}_{2}\text{O}_{2}" src="/latex-image/?%5Ctext%7B

Given below are two statements : One is labelled as Assertion A and other is labelled as Reason R. Assertion A : The dihedral angles in \text{H}_{2}\text{O}_{2} in gaseous phase is 90.2° and in solid phase is 111.5°. Reason R : The change in dihedral angle in solid and gaseous phase is due to the difference in the intermolecular forces. Choose the most appropriate answer from the options given below for A and R.
Option: 1 A is correct but R is not correct.
Option: 2 Both A and R are correct but R is not the correct explanation of A.
Option: 3 Both A and R are correct and R is the correct explanation of A.
Option: 4 A is not correct but R is correct.

Answers (1)

best_answer

\text{H}_{2}\text{O}_{2} has dihedral angles of 111.5^{\circ} and 90.2^{\circ} in the gas phase and the solid phase respectively. The angle is greater in the gas phase.

This change in dihedral angle is due to the change in the intermolecular forces.

Thus, Assertion (A) is not correct while Reason (R) is correct.

Hence, the correct answer is option (4)

Posted by

vishal kumar

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